1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2006 IronPort Systems Inc. <[email protected]>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/condvar.h>
34 #include <sys/eventhandler.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
37 #include <sys/rman.h>
38 #include <sys/selinfo.h>
39 #include <sys/efi.h>
40
41 #include <dev/pci/pcireg.h>
42 #include <dev/pci/pcivar.h>
43
44 #ifdef LOCAL_MODULE
45 #include <ipmivars.h>
46 #else
47 #include <dev/ipmi/ipmivars.h>
48 #endif
49
50 static int ipmi_pci_probe(device_t dev);
51 static int ipmi_pci_attach(device_t dev);
52
53 static struct ipmi_ident
54 {
55 u_int16_t vendor;
56 u_int16_t device;
57 char *desc;
58 } ipmi_identifiers[] = {
59 {0x1028, 0x000d, "Dell PE2650 SMIC interface"},
60 {0, 0, 0}
61 };
62
63 const char *
ipmi_pci_match(uint16_t vendor,uint16_t device)64 ipmi_pci_match(uint16_t vendor, uint16_t device)
65 {
66 struct ipmi_ident *m;
67
68 for (m = ipmi_identifiers; m->vendor != 0; m++)
69 if (m->vendor == vendor && m->device == device)
70 return (m->desc);
71 return (NULL);
72 }
73
74 static int
ipmi_pci_probe(device_t dev)75 ipmi_pci_probe(device_t dev)
76 {
77 const char *desc;
78
79 if (ipmi_attached)
80 return (ENXIO);
81
82 desc = ipmi_pci_match(pci_get_vendor(dev), pci_get_device(dev));
83 if (desc != NULL) {
84 device_set_desc(dev, desc);
85 return (BUS_PROBE_DEFAULT);
86 }
87
88 return (ENXIO);
89 }
90
91 static int
ipmi_pci_attach(device_t dev)92 ipmi_pci_attach(device_t dev)
93 {
94 struct ipmi_softc *sc = device_get_softc(dev);
95 struct ipmi_get_info info;
96 const char *mode;
97 int error, type;
98
99 /* Look for an IPMI entry in the SMBIOS table. */
100 if (!ipmi_smbios_identify(&info))
101 return (ENXIO);
102
103 sc->ipmi_dev = dev;
104
105 switch (info.iface_type) {
106 case KCS_MODE:
107 mode = "KCS";
108 break;
109 case SMIC_MODE:
110 mode = "SMIC";
111 break;
112 case BT_MODE:
113 mode = "BT";
114 break;
115 default:
116 device_printf(dev, "No IPMI interface found\n");
117 return (ENXIO);
118 }
119
120 device_printf(dev, "%s mode found at %s 0x%jx alignment 0x%x on %s\n",
121 mode, info.io_mode ? "io" : "mem",
122 (uintmax_t)info.address, info.offset,
123 device_get_name(device_get_parent(dev)));
124 if (info.io_mode)
125 type = SYS_RES_IOPORT;
126 else
127 type = SYS_RES_MEMORY;
128
129 sc->ipmi_io_rid = PCIR_BAR(0);
130 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
131 &sc->ipmi_io_rid, RF_ACTIVE);
132 sc->ipmi_io_type = type;
133 sc->ipmi_io_spacing = info.offset;
134
135 if (sc->ipmi_io_res[0] == NULL) {
136 device_printf(dev, "couldn't configure pci io res\n");
137 return (ENXIO);
138 }
139
140 sc->ipmi_irq_rid = 0;
141 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
142 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
143
144 error = ENXIO;
145 switch (info.iface_type) {
146 case KCS_MODE:
147 error = ipmi_kcs_attach(sc);
148 break;
149 case SMIC_MODE:
150 error = ipmi_smic_attach(sc);
151 break;
152 case BT_MODE:
153 error = ipmi_bt_attach(sc);
154 break;
155 }
156 if (error)
157 goto bad;
158 error = ipmi_attach(dev);
159 if (error)
160 goto bad;
161
162 return (0);
163 bad:
164 ipmi_release_resources(dev);
165 return (error);
166 }
167
168 static device_method_t ipmi_methods[] = {
169 /* Device interface */
170 DEVMETHOD(device_probe, ipmi_pci_probe),
171 DEVMETHOD(device_attach, ipmi_pci_attach),
172 DEVMETHOD(device_detach, ipmi_detach),
173 { 0, 0 }
174 };
175
176 static driver_t ipmi_pci_driver = {
177 "ipmi",
178 ipmi_methods,
179 sizeof(struct ipmi_softc)
180 };
181
182 DRIVER_MODULE(ipmi_pci, pci, ipmi_pci_driver, 0, 0);
183
184 /* Native IPMI on PCI driver. */
185
186 static int
ipmi2_pci_probe(device_t dev)187 ipmi2_pci_probe(device_t dev)
188 {
189
190 if (pci_get_class(dev) == PCIC_SERIALBUS &&
191 pci_get_subclass(dev) == PCIS_SERIALBUS_IPMI) {
192 device_set_desc(dev, "IPMI System Interface");
193 return (BUS_PROBE_GENERIC);
194 }
195
196 return (ENXIO);
197 }
198
199 static int
ipmi2_pci_attach(device_t dev)200 ipmi2_pci_attach(device_t dev)
201 {
202 struct ipmi_softc *sc;
203 int error, iface, type;
204
205 sc = device_get_softc(dev);
206 sc->ipmi_dev = dev;
207
208 /* Interface is determined by progif. */
209 switch (pci_get_progif(dev)) {
210 case PCIP_SERIALBUS_IPMI_SMIC:
211 iface = SMIC_MODE;
212 break;
213 case PCIP_SERIALBUS_IPMI_KCS:
214 iface = KCS_MODE;
215 break;
216 case PCIP_SERIALBUS_IPMI_BT:
217 iface = BT_MODE;
218 break;
219 default:
220 device_printf(dev, "Unsupported interface: %d\n",
221 pci_get_progif(dev));
222 return (ENXIO);
223 }
224
225 /* Check the BAR to determine our resource type. */
226 sc->ipmi_io_rid = PCIR_BAR(0);
227 if (PCI_BAR_IO(pci_read_config(dev, PCIR_BAR(0), 4)))
228 type = SYS_RES_IOPORT;
229 else
230 type = SYS_RES_MEMORY;
231 sc->ipmi_io_type = type;
232 sc->ipmi_io_spacing = 1;
233 sc->ipmi_io_res[0] = bus_alloc_resource_any(dev, type,
234 &sc->ipmi_io_rid, RF_ACTIVE);
235 if (sc->ipmi_io_res[0] == NULL) {
236 device_printf(dev, "couldn't map ports/memory\n");
237 return (ENXIO);
238 }
239
240 sc->ipmi_irq_rid = 0;
241 sc->ipmi_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
242 &sc->ipmi_irq_rid, RF_SHAREABLE | RF_ACTIVE);
243
244 error = ENXIO;
245 switch (iface) {
246 case KCS_MODE:
247 device_printf(dev, "using KSC interface\n");
248
249 /*
250 * We have to examine the resource directly to determine the
251 * alignment.
252 */
253 if (!ipmi_kcs_probe_align(sc)) {
254 device_printf(dev, "Unable to determine alignment\n");
255 goto bad;
256 }
257
258 error = ipmi_kcs_attach(sc);
259 if (error)
260 goto bad;
261 break;
262 case SMIC_MODE:
263 device_printf(dev, "using SMIC interface\n");
264 error = ipmi_smic_attach(sc);
265 break;
266 case BT_MODE:
267 device_printf(dev, "using BT interface\n");
268 error = ipmi_bt_attach(sc);
269 break;
270 }
271 if (error)
272 goto bad;
273 error = ipmi_attach(dev);
274 if (error)
275 goto bad;
276
277 return (0);
278 bad:
279 ipmi_release_resources(dev);
280 return (error);
281 }
282
283 static device_method_t ipmi2_methods[] = {
284 /* Device interface */
285 DEVMETHOD(device_probe, ipmi2_pci_probe),
286 DEVMETHOD(device_attach, ipmi2_pci_attach),
287 DEVMETHOD(device_detach, ipmi_detach),
288 { 0, 0 }
289 };
290
291 static driver_t ipmi2_pci_driver = {
292 "ipmi",
293 ipmi2_methods,
294 sizeof(struct ipmi_softc)
295 };
296
297 DRIVER_MODULE(ipmi2_pci, pci, ipmi2_pci_driver, 0, 0);
298 #ifdef ARCH_MAY_USE_EFI
299 MODULE_DEPEND(ipmi2_pci, efirt, 1, 1, 1);
300 #endif
301